6801811 has 4 divisors (see below), whose sum is σ = 6867952. Its totient is φ = 6735672.

The previous prime is 6801797. The next prime is 6801833. The reversal of 6801811 is 1181086.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1181086 = 2 ⋅590543.

It is a cyclic number.

It is not a de Polignac number, because 6801811 - 2⁵ = 6801779 is a prime.

It is a Duffinian number.

6801811 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6801211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32916 + ... + 33121.

It is an arithmetic number, because the mean of its divisors is an integer number (1716988).

Almost surely, 2^6801811 is an apocalyptic number.

6801811 is a deficient number, since it is larger than the sum of its proper divisors (66141).

6801811 is a wasteful number, since it uses less digits than its factorization.

6801811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66140.

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 6801811 is about 2608.0281823631. The cubic root of 6801811 is about 189.4704645990.

Adding to 6801811 its reverse (1181086), we get a palindrome (7982897).

The spelling of 6801811 in words is "six million, eight hundred one thousand, eight hundred eleven".